[deliverable/binutils-gdb.git] / gold / errors.cc

// errors.cc -- handle errors for gold

// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.

// This file is part of gold.

// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
// MA 02110-1301, USA.

#include "gold.h"

#include <cstdarg>
#include <cstdio>

#include "gold-threads.h"
#include "parameters.h"
#include "object.h"
#include "symtab.h"
#include "errors.h"

namespace gold
{

// Class Errors.

const int Errors::max_undefined_error_report;

Errors::Errors(const char* program_name)
  : program_name_(program_name), lock_(NULL), error_count_(0),
    warning_count_(0), undefined_symbols_()
{
}

// Initialize the lock_ field.  If we have not yet processed the
// parameters, then we can't initialize, since we don't yet know
// whether we are using threads.  That is OK, since if we haven't
// processed the parameters, we haven't created any threads, and we
// don't need a lock.  Return true if the lock is now initialized.

bool
Errors::initialize_lock()
{
  if (this->lock_ == NULL && parameters->options_valid())
    this->lock_ = new Lock;
  return this->lock_ != NULL;
}

// Increment a counter, holding the lock if available.

void
Errors::increment_counter(int *counter)
{
  if (!this->initialize_lock())
    {
      // The lock does not exist, which means that we don't need it.
      ++*counter;
    }
  else
    {
      Hold_lock h(*this->lock_);
      ++*counter;
    }
}

// Report a fatal error.

void
Errors::fatal(const char* format, va_list args)
{
  fprintf(stderr, "%s: ", this->program_name_);
  vfprintf(stderr, format, args);
  fputc('\n', stderr);
  gold_exit(false);
}

// Report an error.

void
Errors::error(const char* format, va_list args)
{
  fprintf(stderr, "%s: ", this->program_name_);
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->error_count_);
}

// Report a warning.

void
Errors::warning(const char* format, va_list args)
{
  fprintf(stderr, _("%s: warning: "), this->program_name_);
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->warning_count_);
}

// Print an informational message.

void
Errors::info(const char* format, va_list args)
{
  vfprintf(stderr, format, args);
  fputc('\n', stderr);
}

// Report an error at a reloc location.

template<int size, bool big_endian>
void
Errors::error_at_location(const Relocate_info<size, big_endian>* relinfo,
			  size_t relnum, off_t reloffset,
			  const char* format, va_list args)
{
  fprintf(stderr, "%s: %s: ", this->program_name_,
	  relinfo->location(relnum, reloffset).c_str());
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->error_count_);
}

// Report a warning at a reloc location.

template<int size, bool big_endian>
void
Errors::warning_at_location(const Relocate_info<size, big_endian>* relinfo,
			    size_t relnum, off_t reloffset,
			    const char* format, va_list args)
{
  fprintf(stderr, _("%s: %s: warning: "), this->program_name_,
	  relinfo->location(relnum, reloffset).c_str());
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->warning_count_);
}

// Issue an undefined symbol error.

template<int size, bool big_endian>
void
Errors::undefined_symbol(const Symbol* sym,
			 const Relocate_info<size, big_endian>* relinfo,
			 size_t relnum, off_t reloffset)
{
  bool initialized = this->initialize_lock();
  gold_assert(initialized);
  {
    Hold_lock h(*this->lock_);
    if (++this->undefined_symbols_[sym] >= max_undefined_error_report)
      return;
    ++this->error_count_;
  }
  const char* const version = sym->version();
  if (version == NULL)
    fprintf(stderr, _("%s: %s: undefined reference to '%s'\n"),
	    this->program_name_, relinfo->location(relnum, reloffset).c_str(),
	    sym->demangled_name().c_str());
  else
    fprintf(stderr, _("%s: %s: undefined reference to '%s', version '%s'\n"),
	    this->program_name_, relinfo->location(relnum, reloffset).c_str(),
	    sym->demangled_name().c_str(), version);
}

// Issue a debugging message.

void
Errors::debug(const char* format, ...)
{
  fprintf(stderr, _("%s: "), this->program_name_);

  va_list args;
  va_start(args, format);
  vfprintf(stderr, format, args);
  va_end(args);

  fputc('\n', stderr);
}

// The functions which the rest of the code actually calls.

// Report a fatal error.

void
gold_fatal(const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->fatal(format, args);
  va_end(args);
}

// Report an error.

void
gold_error(const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->error(format, args);
  va_end(args);
}

// Report a warning.

void
gold_warning(const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->warning(format, args);
  va_end(args);
}

// Print an informational message.

void
gold_info(const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->info(format, args);
  va_end(args);
}

// Report an error at a location.

template<int size, bool big_endian>
void
gold_error_at_location(const Relocate_info<size, big_endian>* relinfo,
		       size_t relnum, off_t reloffset,
		       const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->error_at_location(relinfo, relnum, reloffset,
					  format, args);
  va_end(args);
}

// Report a warning at a location.

template<int size, bool big_endian>
void
gold_warning_at_location(const Relocate_info<size, big_endian>* relinfo,
			 size_t relnum, off_t reloffset,
			 const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->warning_at_location(relinfo, relnum, reloffset,
					    format, args);
  va_end(args);
}

// Report an undefined symbol.

template<int size, bool big_endian>
void
gold_undefined_symbol(const Symbol* sym,
		      const Relocate_info<size, big_endian>* relinfo,
		      size_t relnum, off_t reloffset)
{
  parameters->errors()->undefined_symbol(sym, relinfo, relnum, reloffset);
}

#ifdef HAVE_TARGET_32_LITTLE
template
void
gold_error_at_location<32, false>(const Relocate_info<32, false>* relinfo,
				  size_t relnum, off_t reloffset,
				  const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_BIG
template
void
gold_error_at_location<32, true>(const Relocate_info<32, true>* relinfo,
				 size_t relnum, off_t reloffset,
				 const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_LITTLE
template
void
gold_error_at_location<64, false>(const Relocate_info<64, false>* relinfo,
				  size_t relnum, off_t reloffset,
				  const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_BIG
template
void
gold_error_at_location<64, true>(const Relocate_info<64, true>* relinfo,
				 size_t relnum, off_t reloffset,
				 const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_LITTLE
template
void
gold_warning_at_location<32, false>(const Relocate_info<32, false>* relinfo,
				    size_t relnum, off_t reloffset,
				    const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_BIG
template
void
gold_warning_at_location<32, true>(const Relocate_info<32, true>* relinfo,
				   size_t relnum, off_t reloffset,
				   const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_LITTLE
template
void
gold_warning_at_location<64, false>(const Relocate_info<64, false>* relinfo,
				    size_t relnum, off_t reloffset,
				    const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_BIG
template
void
gold_warning_at_location<64, true>(const Relocate_info<64, true>* relinfo,
				   size_t relnum, off_t reloffset,
				   const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_LITTLE
template
void
gold_undefined_symbol<32, false>(const Symbol* sym,
				 const Relocate_info<32, false>* relinfo,
				 size_t relnum, off_t reloffset);
#endif

#ifdef HAVE_TARGET_32_BIG
template
void
gold_undefined_symbol<32, true>(const Symbol* sym,
				const Relocate_info<32, true>* relinfo,
				size_t relnum, off_t reloffset);
#endif

#ifdef HAVE_TARGET_64_LITTLE
template
void
gold_undefined_symbol<64, false>(const Symbol* sym,
				 const Relocate_info<64, false>* relinfo,
				 size_t relnum, off_t reloffset);
#endif

#ifdef HAVE_TARGET_64_BIG
template
void
gold_undefined_symbol<64, true>(const Symbol* sym,
				const Relocate_info<64, true>* relinfo,
				size_t relnum, off_t reloffset);
#endif

} // End namespace gold.
Commit	Line	Data
75f2446e ILT	1	// errors.cc -- handle errors for gold
75f2446e ILT	2
ebdbb458	3	// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
75f2446e ILT	4	// Written by Ian Lance Taylor <iant@google.com>.
	5
	6	// This file is part of gold.
	7
	8	// This program is free software; you can redistribute it and/or modify
	9	// it under the terms of the GNU General Public License as published by
	10	// the Free Software Foundation; either version 3 of the License, or
	11	// (at your option) any later version.
	12
	13	// This program is distributed in the hope that it will be useful,
	14	// but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	// GNU General Public License for more details.
	17
	18	// You should have received a copy of the GNU General Public License
	19	// along with this program; if not, write to the Free Software
	20	// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	21	// MA 02110-1301, USA.
	22
	23	#include "gold.h"
	24
	25	#include <cstdarg>
	26	#include <cstdio>
	27
	28	#include "gold-threads.h"
	29	#include "parameters.h"
	30	#include "object.h"
	31	#include "symtab.h"
	32	#include "errors.h"
	33
	34	namespace gold
	35	{
	36
	37	// Class Errors.
	38
	39	const int Errors::max_undefined_error_report;
	40
	41	Errors::Errors(const char* program_name)
c7912668 ILT	42	: program_name_(program_name), lock_(NULL), error_count_(0),
c7912668 ILT	43	warning_count_(0), undefined_symbols_()
75f2446e ILT	44	{
	45	}
	46
2dd3e587 ILT	47	// Initialize the lock_ field. If we have not yet processed the
	48	// parameters, then we can't initialize, since we don't yet know
	49	// whether we are using threads. That is OK, since if we haven't
	50	// processed the parameters, we haven't created any threads, and we
	51	// don't need a lock. Return true if the lock is now initialized.
c7912668	52
2dd3e587	53	bool
c7912668 ILT	54	Errors::initialize_lock()
c7912668 ILT	55	{
2dd3e587	56	if (this->lock_ == NULL && parameters->options_valid())
c7912668	57	this->lock_ = new Lock;
2dd3e587 ILT	58	return this->lock_ != NULL;
	59	}
	60
	61	// Increment a counter, holding the lock if available.
	62
	63	void
	64	Errors::increment_counter(int *counter)
	65	{
	66	if (!this->initialize_lock())
	67	{
	68	// The lock does not exist, which means that we don't need it.
	69	++*counter;
	70	}
	71	else
	72	{
	73	Hold_lock h(*this->lock_);
	74	++*counter;
	75	}
c7912668 ILT	76	}
c7912668 ILT	77
75f2446e ILT	78	// Report a fatal error.
	79
	80	void
	81	Errors::fatal(const char* format, va_list args)
	82	{
	83	fprintf(stderr, "%s: ", this->program_name_);
	84	vfprintf(stderr, format, args);
	85	fputc('\n', stderr);
	86	gold_exit(false);
	87	}
	88
	89	// Report an error.
	90
	91	void
	92	Errors::error(const char* format, va_list args)
	93	{
	94	fprintf(stderr, "%s: ", this->program_name_);
	95	vfprintf(stderr, format, args);
	96	fputc('\n', stderr);
c7912668	97
2dd3e587	98	this->increment_counter(&this->error_count_);
75f2446e ILT	99	}
	100
	101	// Report a warning.
	102
	103	void
	104	Errors::warning(const char* format, va_list args)
	105	{
	106	fprintf(stderr, _("%s: warning: "), this->program_name_);
	107	vfprintf(stderr, format, args);
	108	fputc('\n', stderr);
c7912668	109
2dd3e587	110	this->increment_counter(&this->warning_count_);
75f2446e ILT	111	}
75f2446e ILT	112
c5818ff1 CC	113	// Print an informational message.
	114
	115	void
	116	Errors::info(const char* format, va_list args)
	117	{
	118	vfprintf(stderr, format, args);
	119	fputc('\n', stderr);
	120	}
	121
75f2446e ILT	122	// Report an error at a reloc location.
	123
	124	template<int size, bool big_endian>
	125	void
	126	Errors::error_at_location(const Relocate_info<size, big_endian>* relinfo,
	127	size_t relnum, off_t reloffset,
	128	const char* format, va_list args)
	129	{
	130	fprintf(stderr, "%s: %s: ", this->program_name_,
	131	relinfo->location(relnum, reloffset).c_str());
	132	vfprintf(stderr, format, args);
	133	fputc('\n', stderr);
c7912668	134
2dd3e587	135	this->increment_counter(&this->error_count_);
75f2446e ILT	136	}
	137
	138	// Report a warning at a reloc location.
	139
	140	template<int size, bool big_endian>
	141	void
	142	Errors::warning_at_location(const Relocate_info<size, big_endian>* relinfo,
	143	size_t relnum, off_t reloffset,
	144	const char* format, va_list args)
	145	{
	146	fprintf(stderr, _("%s: %s: warning: "), this->program_name_,
	147	relinfo->location(relnum, reloffset).c_str());
	148	vfprintf(stderr, format, args);
	149	fputc('\n', stderr);
c7912668	150
2dd3e587	151	this->increment_counter(&this->warning_count_);
75f2446e ILT	152	}
	153
	154	// Issue an undefined symbol error.
	155
	156	template<int size, bool big_endian>
	157	void
	158	Errors::undefined_symbol(const Symbol* sym,
	159	const Relocate_info<size, big_endian>* relinfo,
	160	size_t relnum, off_t reloffset)
	161	{
2dd3e587 ILT	162	bool initialized = this->initialize_lock();
2dd3e587 ILT	163	gold_assert(initialized);
75f2446e	164	{
c7912668	165	Hold_lock h(*this->lock_);
75f2446e ILT	166	if (++this->undefined_symbols_[sym] >= max_undefined_error_report)
	167	return;
	168	++this->error_count_;
	169	}
789aa6de ILT	170	const char* const version = sym->version();
	171	if (version == NULL)
	172	fprintf(stderr, _("%s: %s: undefined reference to '%s'\n"),
	173	this->program_name_, relinfo->location(relnum, reloffset).c_str(),
	174	sym->demangled_name().c_str());
	175	else
	176	fprintf(stderr, _("%s: %s: undefined reference to '%s', version '%s'\n"),
	177	this->program_name_, relinfo->location(relnum, reloffset).c_str(),
	178	sym->demangled_name().c_str(), version);
75f2446e ILT	179	}
75f2446e ILT	180
c7912668 ILT	181	// Issue a debugging message.
	182
	183	void
	184	Errors::debug(const char* format, ...)
	185	{
	186	fprintf(stderr, _("%s: "), this->program_name_);
	187
	188	va_list args;
	189	va_start(args, format);
	190	vfprintf(stderr, format, args);
	191	va_end(args);
	192
	193	fputc('\n', stderr);
	194	}
75f2446e ILT	195
	196	// The functions which the rest of the code actually calls.
	197
	198	// Report a fatal error.
	199
	200	void
	201	gold_fatal(const char* format, ...)
	202	{
	203	va_list args;
	204	va_start(args, format);
	205	parameters->errors()->fatal(format, args);
	206	va_end(args);
	207	}
	208
	209	// Report an error.
	210
	211	void
	212	gold_error(const char* format, ...)
	213	{
	214	va_list args;
	215	va_start(args, format);
	216	parameters->errors()->error(format, args);
	217	va_end(args);
	218	}
	219
	220	// Report a warning.
	221
	222	void
	223	gold_warning(const char* format, ...)
	224	{
	225	va_list args;
	226	va_start(args, format);
	227	parameters->errors()->warning(format, args);
	228	va_end(args);
	229	}
	230
c5818ff1 CC	231	// Print an informational message.
	232
	233	void
	234	gold_info(const char* format, ...)
	235	{
	236	va_list args;
	237	va_start(args, format);
	238	parameters->errors()->info(format, args);
	239	va_end(args);
	240	}
	241
75f2446e ILT	242	// Report an error at a location.
	243
	244	template<int size, bool big_endian>
	245	void
	246	gold_error_at_location(const Relocate_info<size, big_endian>* relinfo,
	247	size_t relnum, off_t reloffset,
	248	const char* format, ...)
	249	{
	250	va_list args;
	251	va_start(args, format);
	252	parameters->errors()->error_at_location(relinfo, relnum, reloffset,
	253	format, args);
	254	va_end(args);
	255	}
	256
	257	// Report a warning at a location.
	258
	259	template<int size, bool big_endian>
	260	void
	261	gold_warning_at_location(const Relocate_info<size, big_endian>* relinfo,
	262	size_t relnum, off_t reloffset,
	263	const char* format, ...)
	264	{
	265	va_list args;
	266	va_start(args, format);
	267	parameters->errors()->warning_at_location(relinfo, relnum, reloffset,
	268	format, args);
	269	va_end(args);
	270	}
	271
	272	// Report an undefined symbol.
	273
	274	template<int size, bool big_endian>
	275	void
	276	gold_undefined_symbol(const Symbol* sym,
	277	const Relocate_info<size, big_endian>* relinfo,
	278	size_t relnum, off_t reloffset)
	279	{
	280	parameters->errors()->undefined_symbol(sym, relinfo, relnum, reloffset);
	281	}
	282
	283	#ifdef HAVE_TARGET_32_LITTLE
	284	template
	285	void
	286	gold_error_at_location<32, false>(const Relocate_info<32, false>* relinfo,
	287	size_t relnum, off_t reloffset,
	288	const char* format, ...);
	289	#endif
	290
	291	#ifdef HAVE_TARGET_32_BIG
	292	template
	293	void
	294	gold_error_at_location<32, true>(const Relocate_info<32, true>* relinfo,
	295	size_t relnum, off_t reloffset,
	296	const char* format, ...);
	297	#endif
	298
	299	#ifdef HAVE_TARGET_64_LITTLE
	300	template
	301	void
	302	gold_error_at_location<64, false>(const Relocate_info<64, false>* relinfo,
	303	size_t relnum, off_t reloffset,
	304	const char* format, ...);
	305	#endif
306
307	#ifdef HAVE_TARGET_64_BIG
308	template
309	void
310	gold_error_at_location<64, true>(const Relocate_info<64, true>* relinfo,
311	size_t relnum, off_t reloffset,
312	const char* format, ...);
313	#endif
314
315	#ifdef HAVE_TARGET_32_LITTLE
316	template
317	void
318	gold_warning_at_location<32, false>(const Relocate_info<32, false>* relinfo,
319	size_t relnum, off_t reloffset,
320	const char* format, ...);
321	#endif
322
323	#ifdef HAVE_TARGET_32_BIG
324	template
325	void
326	gold_warning_at_location<32, true>(const Relocate_info<32, true>* relinfo,
327	size_t relnum, off_t reloffset,
328	const char* format, ...);
329	#endif
330
331	#ifdef HAVE_TARGET_64_LITTLE
332	template
333	void
334	gold_warning_at_location<64, false>(const Relocate_info<64, false>* relinfo,
335	size_t relnum, off_t reloffset,
336	const char* format, ...);
337	#endif
338
339	#ifdef HAVE_TARGET_64_BIG
340	template
341	void
342	gold_warning_at_location<64, true>(const Relocate_info<64, true>* relinfo,
343	size_t relnum, off_t reloffset,
344	const char* format, ...);
345	#endif
346
347	#ifdef HAVE_TARGET_32_LITTLE
348	template
349	void
350	gold_undefined_symbol<32, false>(const Symbol* sym,
351	const Relocate_info<32, false>* relinfo,
352	size_t relnum, off_t reloffset);
353	#endif
354
355	#ifdef HAVE_TARGET_32_BIG
356	template
357	void
358	gold_undefined_symbol<32, true>(const Symbol* sym,
359	const Relocate_info<32, true>* relinfo,
360	size_t relnum, off_t reloffset);
361	#endif
362
363	#ifdef HAVE_TARGET_64_LITTLE
364	template
365	void
366	gold_undefined_symbol<64, false>(const Symbol* sym,
367	const Relocate_info<64, false>* relinfo,
368	size_t relnum, off_t reloffset);
369	#endif
370
371	#ifdef HAVE_TARGET_64_BIG
372	template
373	void
374	gold_undefined_symbol<64, true>(const Symbol* sym,
375	const Relocate_info<64, true>* relinfo,
376	size_t relnum, off_t reloffset);
377	#endif
378
379	} // End namespace gold.